Home / 1,091,260.80-1,636,891.20-755,337.60

Finding the Fourth Proportional to 1,091,260.80, 1,636,891.20 and 755,337.60

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Solution

The fourth proportional to 1,091,260.80, 1,636,891.20 and 755,337.60 is: 1,133,006.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,260.80 : 1,636,891.20 = 755,337.60 : x
  2. Step 2: Convert to fraction form
    1,091,260.80/1,636,891.20 = 755,337.60/x
  3. Step 3: Cross multiply
    1,091,260.80x = 1,636,891.20 × 755,337.60
  4. Step 4: Simplify right side
    1,091,260.80x = 1,236,405,470,469.12
  5. Step 5: Solve for x
    x = 1,236,405,470,469.12/1,091,260.80
  6. Step 6: Final answer
    x = 1,133,006.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.